1、Designation:D520406 Designation: D5204 11Standard Classification System forPolyamide-Imide (PAI) Molding and Extrusion Materials1This standard is issued under the fixed designation D5204; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revis
2、ion, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This classification
3、 system covers polyamide-imide materials suitable for injection molding and extrusion.1.2 The properties included in this classification system are those required to identify the compositions covered. There may beIt is possible that other requirements are necessary to identify particular characteris
4、tics important to specialized applications. Thesemay be specified by using The use of suffixes as givenshown in Section5.isonewayofspecifying these requirements.1.3 This standard allows for the use of recycled materials provided that specification requirements based upon this classificationsystem ar
5、e met.1.4 This classification system and subsequent line call-out (specification) is intended to be a means of calling out plasticsmaterials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selectionshouldneeds to be made by those having expe
6、rtise in the plastics field after careful consideration of the design and the performancerequired of the part, the environment to which it will be exposed, the fabrication process to be employed, the inherent propertiesof the material other than those covered by this classification, and the economic
7、s.1.5 The values stated in SI units are to be regarded as the standard. (Reporting in inch-pound units is acceptable.) Note1Thereis no equivalent or similar ISO standard.1.6 The following precautionary caveat pertains only to the test methods portion, Section 11, of this classification system: Thiss
8、tandard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations priorto use.NOTE 1There is no known ISO
9、 equivalent to this standard.2. Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials atCommercial Power FrequenciesD150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant
10、) of Solid Electrical InsulationD256 Test Methods for Determining the Izod Pendulum Impact Resistance of PlasticsD257 Test Methods for DC Resistance or Conductance of Insulating MaterialsD618D618 Practice for Conditioning Plastics for TestingD790 Test Methods for Flexural Properties of Unreinforced
11、and Reinforced Plastics and Electrical Insulating MaterialsD792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by DisplacementD883 Terminology Relating to PlasticsD1525 Test Method for Vicat Softening Temperature of PlasticsD1600 Terminology for Abbreviated Terms Relati
12、ng to PlasticsD1708 Test Method for Tensile Properties of Plastics by Use of Microtensile SpecimensD2863 Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics(Oxygen Index)1This classification system is under the jurisdiction of ASTM Committee D20 o
13、n Plastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Sept. 1, 2006. Published September 2006. Originally approved in 1991. Last previous edition approved in 2003 as D5204-03. DOI:10.1520/D5204-06.Current edition approved Feb. 15, 2011.
14、 Published March 2011. Originally approved in 1991. Last previous edition approved in 2006 as D5204 - 06. DOI:10.1520/D5204-11.2For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. ForAnnual Book ofASTM Standardsvolume information, re
15、fer to the standards Document Summary page on the ASTM website.1This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all
16、changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 10
17、0 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.D3641 Practice for Injection Molding Test Specimens of Thermoplastic Molding and Extrusion MaterialsD3892 Practice for Packaging/Packing of PlasticsD4000 Classification System for Specifying Plastic MaterialsE29 Practi
18、ce for Using Significant Digits in Test Data to Determine Conformance with SpecificationsIEEE/ASTM SI-10 Standard for Use of the International System of Units (SI): The Modern Metric System2.2 Military and Federal Specifications and Standards:3MIL-P-46179A Plastic Molding and Extrusion Materials, Po
19、lyamide-Imide (PAI)NOTE 2MIL-P-46179A property requirements are the basis of Classification System D5204. The Department of Defense adopted ClassificationSystem D5204 on July 27, 1994, and canceled MIL-P-46179A.2.3 SAE Specifications:4AMS 3670B Polyamide-Imide Bar, Rod, and Shapes Molded or Extruded
20、AMS 3670/1B Unfilled Polyamide-Imide Bar, Rod and ShapesAMS 3670/2B Polyamide-Imide Bar, Rod and Shapes 20-Graphite-3-Polytetrafluoroethylene FilledAMS 3670/3B Polyamide-Imide Bar, Rod and Shapes 12-Graphite-3-Polytetrafluoroethylene FilledAMS 3670/4C Polyamide-Imide Bar, Rod and Shapes 30 Glass Fib
21、erAMS 3670/5C Polyamide-Imide Bar, Rod and Shapes 30 Carbon Graphite Fiber3. Terminology3.1 The terminology used in this classification system is in accordance with Terminology D883 and D1600.3.2 Definitions of Terms Specific to This Standard:3.2.1 polyamide-imide (PAI), na polymer that may be compo
22、sed of linkages of all random, or all block, or all alternating, orany combination thereof, amide and imide units in the structural backbone.4. Classification4.1 The polyamide-imide materials shall be designated PAI, as specified in Terminology D1600.4.2 Polyamide-imide materials are classified into
23、 groups that are subdivided into classes and grades as shown in Table PAI.4.2.1 An example of this classification system is as follows:The designation PAI012L23 would indicate from Table PAI:PAI = Polyamide-imide as found in Terminology D1600,01 (Group) = Injection molding material,2 (Class) = Wear
24、resistance PAI, andL23 (Grade) = Nominal 20 % graphite and 3 % PTFE with the require-ments given in Table PAI.4.2.2 To facilitate the incorporation of special materials not covered in Table PAI, the “other” category (0) for group, class, andgrade is shown on the table with the basic properties to be
25、 obtained from Table A.4.3 Use Table A shall be used to specify the physical property requirements for other PAI materials. These properties shall beshown by a six-character designation. The designation shall consist of the letter A and the five digits comprising the cell numbersfor the property req
26、uirements in the order as they appear in Table A.4.3.1 Although the values listed are necessary to include the range of properties available in existing materials, users shouldthisdoes not infer that every possible combination of the properties exists or can be obtained. is obtainable.4.3.2 A single
27、 letter shall be used to indicate the major reinforcement or combinations, or both, along with two digits thatindicate the percentage of additive(s) by total mass, with tolerances tabulated as follows:Category Material ToleranceC Carbon or graphite fiber reinforced 63 percentage pointsG Glass fiber
28、reinforced 63 percentage pointsL Lubricants 63 percentage pointsM Minerals 63 percentage pointsR Combinations of reinforcements orfillers, or both65 percentage points4.3.3 This part of the classification system uses the type and percentage of additive to designate the modification of the basicmateri
29、al. To facilitate this designation, the type and percentage of additive can be shown on the suppliers technical data sheetunless it is proprietary in nature. If necessary, additional requirements shall be indicated by use of the suffix part of the system,as given in Section 5.4.3.4 An example of thi
30、s classification system for a polyamide-imide material is as follows:3Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5094, attn: NPODS.19111-5098,http:/dodssp.daps.dla.mil.4Available from the Society of Automotive Engineers,
31、Inc., 400 Commonwealth Drive, Warrendale, PA 15096.4Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http:/www.sae.org.D5204 112The designation PAI0130G40A61550PAI0130 = polyamide-imide from Table PAI,G40 = glass reinforced at 40 % nominal level,A = Table A ph
32、ysical-property requirements,6 = tensile strength, 172 MPa, min,1 = elongation, 4 %, min,5 = flexural strength, 269 MPa, min,5 = flexural modulus, 11700 MPa, min, and0 = unspecified property.If no properties are specified, the designation would be PAI0130G40A00000.5. Suffixes5.1 When additional requ
33、irements are needed, based on application, that are not covered by the basic requirements (Table PAI)or cell-table requirements (Table A), they shall be indicated through the use of suffixes.5.2 A list of suffixes can be found in Classification System D4000 (Table 3) and mayare to be used for additi
34、onal requirementsas appropriate. Additional suffixes will be added to Classification System D4000 as test methods and requirements are developedand requested.5.2.1 An example of this classification system using a suffix is as follows:The designation PAI013G30CAXXXThe designation PAI013G30CBXXXPAI013
35、G30 = polyamide-imide material as described in Table PAI,C = melting point / softening point from Classification SystemD4000 ,D1600C = melting point / softening point from Classification SystemD4000A = Test Method D1525, Rate A (Vicat), andB = Test Method D1525, Rate A (Vicat), andXXX = three digit
36、number indicating minimum value, C.5.3 Suffixes for electrical properties, if required, can be found in Table SE in Supplementary Requirements.6. General Requirements6.1 Basic requirements from Table A, as they apply, are always in effect unless these requirements are superseded by specificsuffix re
37、quirements, which always take precedence.6.1.1 The material composition shall be uniform and shall conform to the requirements specified herein.7. Detail Requirements7.1 Test specimens for the various materials shall conform to the requirements prescribed in TableAand the suffix requirementsas they
38、apply.7.2 For the purpose of determining conformance, all specified limits in this specification (line callout) based on thisclassification system, are lot averages by round-off, as defined in Practice E29.7.2.1 With the round-off method, an observed value or a calculated value shouldshall be rounde
39、d off to the nearest unit in thedesignated place of figures. The rounded off value shouldshall then be compared directly to the specified limiting value.Conformance or nonconformance with a specification based on this classification system is based on this comparison.8. Sampling8.1 Sampling shall be
40、 statistically adequate to satisfy requirements of 12.2.Abatch or lot of material shall be defined as materialproduced in a single compounding run. compound blend.9. Test Specimen9.1 Dry pellets before molding test specimens. Pellets dried on trays at 149C 300F(300F) in a desiccant air drier for ami
41、nimum of 24 h have been found to be satisfactory for injection molding.9.2 Unless otherwise specified, injection and extrusion resins test specimens shall be prepared by injection molding inaccordance with Practice D3641.NOTE 3Typical conditions for molding are melt temperature of 315 to 370C 600(60
42、0 to 700F700F) and mold temperature of 195 to 215C380(380 to 420F,420F), depending on the product. Because of the equipment requirements and difficulty associated with molding PAI, themanufacturer normally does all molding of parts.10. Conditioning10.1 Postcure all test specimens in accordance with
43、the manufacturers instructions.10.2 Condition all test specimens for a minimum of 40 h at 23 6 2C and 50 6 5%10 % relative humidity after postcuring andbefore testing.11. Test Methods11.1 Determine the properties enumerated in this classification system in accordance with the relevant methods as the
44、y apply.D5204 11311.2 Specify methods for reinforcement and additive concentration.12. Certification and Inspection12.1 Inspection and certification of the material supplied with reference to a specification based on this classification systemshall be for conformance to the requirements specified he
45、rein.12.2 Lot acceptance inspection shall be the basis on which acceptance or rejection of the lot is made and shall consist of thetests listed, as they apply, as follows: tensile strength at break, tensile elongation at break, and specific gravity.12.3 Periodic check inspection shall consist of the
46、 tests specified for all requirements of the material under this classificationsystem. Inspection frequency shall be adequate to ensure that the material is certifiable in accordance with 12.4NOTE4If any failure occurs, the material may be retested to establish conformity. 4If any failure occurs, it
47、 is acceptable to retest the material toestablish conformity.12.4 Certification shall state that the material meets the requirements of the acceptance tests of this classification system inaccordance with 12.2. Lot average values shall be reported for the lot acceptance properties as designated by t
48、he classification inaccordance with Table PAI.12.5 A report of the test results shall be furnished when requested. The report shall consist of the lot-acceptance inspection forthe shipment. The results of the most recent periodic-check inspection shall also be furnished when requested by the purchas
49、er.13. Packaging and Package Marking13.1 For packing, packaging, and package marking, the provisions of Practice D3892 shall apply.14. Keywords14.1 extrusion material; line call-out; molding material; polyamide-imideD5204 114TABLE PAI Requirements for Polyamide-Imide PlasticsGroup Description Class Description Grade DescriptionTensile Strength,Test MethodD1708,MPa psi, minTensile Elongation,Test MethodD1708, %, minSpecific Gravity,Test Method D792Group Description Class Description Grade DescriptionTensile Strength,Test MethodD1708,MPa (psi), minTen
